1-Bit 20 Mb/s Dual-SupplyLevel Translator

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Overview

The NLSX4401 is a 1−bit configurable dual−supply bidirectionalauto sensing translator that does not require a directional control pin.The I/O VCC and I/O VL ports are designed to track two differentpower supply rails, VCC and VL respectively. Both the VCC and VLsupply rails are configurable from 1.5 V to 5.5 V. This allows voltagelogic signals on the VL side to be translated into lower, higher orequal value voltage logic signals on the VCC side, and vice−versa.The NLSX4401 translator has integrated 10 k pull−up resistorson the I/O lines. The integrated pull−up resistors are used to pull upthe I/O lines to either VL or VCC. The NLSX4401 is an excellentmatch for open−drain applications such as the I2C communicationbus.

  • I2C, SMBus, PMBus
  • Low Voltage ASIC Level Translation
  • Mobile Phones, Cameras, Consumer Products
  • VL can be Less than, Greater than or Equal to VCC
  • Wide VCC Operating Range: 1.5 V to 5.5 V
  • Wide VL Operating Range: 1.5 V to 5.5 V
  • High Speed with 24 Mb/s Guaranteed Date Rate
  • Low Bit−to−Bit Skew
  • Enable Input and I/O Pins are Overvoltage Tolerant (OVT) to Enable Input and I/O Pins are Overvoltage Tolerant (OVT) to 5.5 V
  • Non−preferential Powerup Sequencing
  • Power−Off Protection

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Input Level

VCC Min (V)

VCC Max (V)

tpd Max (ns)

IO Max (mA)

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NLSX4401MU1TCG

Active

Pb

A

H

P

UDFN-6

1

260

REEL

3000

Y

1

CMOS

1.5

5.5

12

0.02

$0.4147

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